pem_lib.c | Explore in Territory

/* Copyright (C) 1995-1998 Eric Young ([email protected])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([email protected]).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson ([email protected]).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young ([email protected])"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson ([email protected])"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.] */

#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>

#include <openssl/base64.h>
#include <openssl/buf.h>
#include <openssl/des.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/pem.h>
#include <openssl/rand.h>
#include <openssl/x509.h>

#include "../internal.h"


#define MIN_LENGTH …

static int load_iv(char **fromp, unsigned char *to, size_t num);
static int check_pem(const char *nm, const char *name);

// PEM_proc_type appends a Proc-Type header to |buf|, determined by |type|.
static void PEM_proc_type(char buf[PEM_BUFSIZE], int type) { … }

// PEM_dek_info appends a DEK-Info header to |buf|, with an algorithm of |type|
// and a single parameter, specified by hex-encoding |len| bytes from |str|.
static void PEM_dek_info(char buf[PEM_BUFSIZE], const char *type, size_t len,
                         char *str) { … }

void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x,
                    pem_password_cb *cb, void *u) { … }

static int check_pem(const char *nm, const char *name) { … }

static const EVP_CIPHER *cipher_by_name(const char *name) { … }

int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm,
                       const char *name, BIO *bp, pem_password_cb *cb,
                       void *u) { … }

int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp, void *x,
                   const EVP_CIPHER *enc, const unsigned char *pass,
                   int pass_len, pem_password_cb *callback, void *u) { … }

int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, void *x,
                       const EVP_CIPHER *enc, const unsigned char *pass,
                       int pass_len, pem_password_cb *callback, void *u) { … }

int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
                  pem_password_cb *callback, void *u) { … }

int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher) { … }

static int load_iv(char **fromp, unsigned char *to, size_t num) { … }

int PEM_write(FILE *fp, const char *name, const char *header,
              const unsigned char *data, long len) { … }

int PEM_write_bio(BIO *bp, const char *name, const char *header,
                  const unsigned char *data, long len) { … }

int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
             long *len) { … }

int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
                 long *len) { … }

int PEM_def_callback(char *buf, int size, int rwflag, void *userdata) { … }
chromium/third_party/boringssl/src/crypto/pem/pem_lib.c
